All categories

3 years ago

10 points - What is the 8th term of the sequence? 8, 24, 72, 216...

Mathematics

1 answer:

m_a_m_a [10]3 years ago

8 0

Answer:

17,496 hope this helps

Step-by-step explanation:

You might be interested in

Simplify using order of operations 5.3-6.3+5²

prohojiy [21]

IT SHOULD BE 24 IF NOT IM SRRY

6 0

3 years ago

Read 2 more answers

What is a parallegram ?

Mrrafil [7]

A quadrilatetal with two different pairs of equal and parallel sides.

5 0

3 years ago

Please answer soon I need this answer very quickly for math. Thank you!

Kazeer [188]

a. First five terms: 9,13,17,21,25

b. Sum of first 25 terms = 1425

c. The given sequence is an arithmetic sequence because the common difference between two consecutive terms is same.

Further explanation:

Given

Formula of sequence

$a_n=4n+5$

1. First 5 terms:

For first 5 terms, we have to put n=1,2,...5,

So,

$For\ n=1\\a_1=4(1)+5\\=4+5\\=9\\For\ n=2\\a_2=4(2)+5\\=8+5\\=13\\For n=3\\a_3=4(3)+5\\=12+5\\=17\\For\ n=4\\a_4= 4(4)+5\\=16+5\\=21\\For\ n=5\\a_5=4(5)+5\\=20+5\\=25\\First\ 5\ terms\ are: 9,13,17,21,25$

2. Sum of first 25 terms:

For that we have to find 25th term first

$a_{25} = 4(25)+5\\=100+5\\=105$

The formula for sum is:

$S_n=\frac{n}{2}(a_1+a_n)}\\Putting\ the\ values\\S_n=\frac{25}{2}(9+105)\\=12.5(114)\\=1425$

3. Type of sequence

The given sequence is an arithmetic sequence because the common difference between two consecutive terms is same.

i.e.

$d=4$

Keywords: Arithmetic sequence, Sum of arithmetic sequence

Learn more about arithmetic sequence at:

#LearnwithBrainly

4 0

3 years ago

In circle S with m ∠ R S T = 98 m∠RST=98 and R S = 4 RS=4 units, find the length of arc RT. Round to the nearest hundredth.

user100 [1]

Answer:6.84

Step-by-step explanation:

7 0

2 years ago

What is the surface area of the triangular prism?

Svetlanka [38]

Answer:

Step-by-step explanation:

Using pythag theorem we can find the last side of the triangle, which is equal to 5 after we have this we simply add up the areas of each individual shape like (1/2*3*4)+(1/2*3*4)+(6*5)+(3*6)+(4*6)

6 0

3 years ago